The LilyPad ProtoSnap Plus is a sewable electronics prototyping board that you can use to learn circuits and programming, then break apart to make an interactive fabric or wearable project. In this tutorial we'll introduce the components that make up the ProtoSnap board, and set up the free Arduino software you'll need to reprogram the LilyPad USB Plus at its center. Once you've done this, you'll be able to write and upload your own programs to the board, making it do almost anything you want.